If you read the CSS-fileyou have a =selector=and an object enclosed in a pair of curly-brackets-{ }the object has 1 or more properties

Each property consist of apropertyKey, a colon-: as separator, and its associated Value, ended with a semi-colon-;the semi-colon-; must be seen as a separator between 2 propertiesthus the last property will NOT need a semi-colon-;**

===== intro to the 2nd problem ======

The index.html file is read by your Browserand is loaded into =memory= following the rules of the Document Object Model in short the DOM.( Each =Browser-brand= has its own interpretation of the DOM !! )

The DOM representation of this HTML-documentas defined in the index.html filelooks like